Because all the cards in a color can be cast using that same type of land, they are vastly more likely to appear in the same decks, leading to consistent, recognizable play styles across decks which play that color
Play Booster may contain these cards: FIN 1-420, 577
Its effectiveness in life gain decks (the fifth most popular theme on EDHREC), and its ability to completely end a game in something like a token or Soldiers deck, are why I ranked The Wind CrystalThe Wind Crystal so high
Yes, this folio is compatible with cards protected by soft-sleeves, Deck Guards, and even double-sleeved Deck Guards
So: can they do it
This card is so powerful, it allows a crafty player to win on turn one